Mathematics Middle School

What is true of every rhombus that is also true of every parallelogram?
a. A rhombus has right angles.
b. A rhombus has all equal sides.
c. A rhombus has no perpendicular lines.
d. A rhombus has two pairs of parallel sides.

Answers

Answer 1
D. A rhombus has two pairs of parallel sides

Explanation: parallelograms are quadrilaterals with two sets of parallel sides

Related Questions

PLEASE HELP! WILL MARK BRAINLIEST!

PLEASE HELP! WILL MARK BRAINLIEST!

Answers

Answer:

1) width = 10 + 2x

length = 20 + 2x

2) area = (10 + 2x)(20 + 2x)

= 4(5 + x)(10 + x)

3) 4(5 + x)(10 + x) = 600

(5 + x)(10 + x) = 150

50 + 15x + x^2 = 150

x^2 + 15x - 100 = 0

(x - 5)(x + 20) = 0

x = 5 feet

The width of the walkway is 5 feet.

I think this is correct

the table shows the possible outcomes of spinning the given spinner twice. Find the probability of the spinner landing on 1 at least once.

The probability is?

LOOK AT THE PICTURE AND PLEASE HELP!!

the table shows the possible outcomes of spinning the given spinner twice. Find the probability of the

Answers

Answer: The probability or percentage of the spinner landing on 1 once is 36% or 9 out of 25.

Step-by-step explanation:

In a picture, there are 40 monkeys, and 60% of the monkeys are in the trees. How many monkeys are in the trees? Use a 10-squares model to explain your answer.

Answer:​

In a picture, there are 40 monkeys, and 60% of the monkeys are in the trees. How many monkeys are in

Answers

Answer:

24 monkeys are in the trees

Step-by-step explanation:

The only part I don´t know how to do is the 10-square model

24 monkeys
You set it up as x/40 and 60/100 and cross multiply
60*40 = 2400
100•x = 100x
2400 divided by 100 is equal too 24

From the anime Naruto, the character Madara bought two pair of shoes from Nike & Adidas.
The cost of the Nike is ଺
ହ
of Adidas’s cost. If the Nike cost $84, how much is the Adidas?

Write & solve an Algebraic Equation.

Answers

Answer:

$163+x  or$163x

Step-by-step explanation:

A desk is on sale for $208, which is 35% less than the regular price.
What is the regular price?

Answers

The regular price is $420
420 it was on my test

1.) k + 4n k = 3 and n = 7 *
5 points
2.) 3f - 6 - 4r when f = 7 and r =-5 *
5 points
3.) 9z + 8h + 2 when z = 3 and h = 7 *
5 points
4.) 3k + 4s when k = 6 and s = -2 *
5 points
5.) 5 + 7c + 9d when c = 3 and d = -3 *
5 points

Answers

1.) 31
2.) 35
3.)85
4.) 10
5.)-1
1. 31
2. -5
3. 85
4. 10
5. -1

Wat is the product of 8/9 and 2/7

Answers

Answer:

16/63

Step-by-step explanation:

Given problem,

→ (8/9) × (2/7)

Let's solve the problem,

→ (8/9) × (2/7)

→ (8 × 2)/(9 × 7)

→ 16/63

Hence, answer is 16/63.

Pools are not selling well at Jay’s Store. So, he decides to put them on clearance for $19.99, plus an extra 20% off. Approximately how much will the small pool cost?

Answers

$16 ( 15.992). one percent of 20.00 is 0.20 and if you take that and multiply it buy the percentage (20%) you get 4. and 20 - 4 = 16

What is the shape of the base?

What is the shape of the base?

Answers

I’m thinking a rectangle.

Answer:

Triangle

Step-by-step explanation:

the shape shown above will be a triangular prism when folded into its form. Therefore the base shape of the prism is a triangle

What is the greatest common factor of 57 and 76?

Answers

Answer:

19

Step-by-step explanation:

57 / 19

76 / 19

Answer:

19

Step-by-step explanation:

Have a nice day

the profit a shoe store maker for selling x pairs of of sneakers can be represented by the function p(x) = 12x. If a store makes a profit of $540 for selling 45 pairs of sneakers, which of the following is true?

- P (540)=45
_ P (45)=540
_p(12)=1
P(45)=12

Answers

Answer:

im very dumb sorry :(

Step-by-step explain

:'(

PLEASE HELP!!!!! SEMESTER TEST PART 2 K12 PLEASE ANSWER ALL THE QUESTIONS GETS BRAINLIEST

PLEASE HELP!!!!! SEMESTER TEST PART 2 K12 PLEASE ANSWER ALL THE QUESTIONS GETS BRAINLIEST

Answers

Answ

Step-by-step explanation:

step answer-
Characteristics is greecex

2+x=4 wat is x plz help me

Answers

X=2 it’s Honestly easy I just look at da missing number

Answer:

2

Step-by-step explanation:

2+2=4

an alligator was 32 inches long in 2022, she was measured again in 2023, she now is 38 inches long, what was the percent change?

Answers

6 Percent because 32+6=38
(V2−V1)/|V1|×100
=(38−32)/|32|×100
=6/32×100
=0.1875×100

=18.75%change
=18.75%increase

How did you decide where to place your line of best fit? Describe your reasoning.

Based on your data, describe the relationship between age and the number of U.S. states a person can name in 60 seconds.
Do you see any areas in your data or points that could be considered clusters or outliers? Explain your answer in complete sentences.

Trolls will be reported

How did you decide where to place your line of best fit? Describe your reasoning.Based on your data,

Answers

Answer:So I don’t know the other 5 points because you didn’t give the data about the age and number of US states named in 60 seconds, but using the 5coordinate points you gave, I was able to make this line of best fit.

So basically the units are counting up by 5.

The x axis is age in years and y axis is the number of US states named in 60 seconds.

Since you didn’t give me the data to make the other 5 points, I can’t really answer the last question, but from the graph that I did make, there are no points that would be considered outliers, and there are no clusters in sight.

(BTW THIS IS IMPORTANT!! - when you use the data to add the other 5 points, there might be an outlier or more then one outlier. And there might be a cluster. Just look at it after you graph the last 5 and change the answer I gave you if there is an outlier or cluster)

Step-by-step explanation:

-6 = 2x i need helppppp plzzzzz

Answers

Answer:

x= negative 3

Step-by-step explanation:

-6 divided by 2 is -3

Isolate the variable by dividing each side by factors that don't contain the variable.

x = −3

x + 12 > 17 please i need help on this and i will apreciate your answer!!

Answers

Answer:

x > 5

Step-by-step explanation:

x + 12 > 17

x + 12 - 12 > 17 - 12  ==> isolate x by subtracting 12 on each side

x > 17 - 12

x > 5  ==> simplify

Answer: x > 5

Step-by-step explanation:
x + 12 > 17 (treat '>' as an equal sign and move 12 to the other side)
x > 17 - 12 (sign of 12 changes , now subtract them)
x > 5 (x (which is unknown) is greater than 5


(If it helps, please mark as brainliest)

what is the value of x
​

what is the value of x

Answers

Answer:

40

Step-by-step explanation:

Add all of the angles and set them =180

Answer:

x=40

Step-by-step explanation:

We are given all 3 angle equations for the interior angles of a triangle:
x-10

2x-10

2x

We know that all angles inside a triangle must add up to 180 degrees, so let's write an equation:

180=(x-10)+(2x-10)+(2x)

simplify

180=5x-20

add 20 to both sides

200=5x

divide both sides by 5

40=x

So, x=40.

Hope this helps! :)

During the month of august, Mr. Amazon received junk mail on 25 of those days. What is the relative frequency of Mr. Amazon receiving junk mail?

Answers

Answer:

1.24

Step-by-step explanation:

To find the relative frequency, divide the frequency(f) by the total number of data values (n)

31 days in August / 25 = 1.24

Create a histogram that shows this information.

Create a histogram that shows this information.

Answers

Answer:

Step-by-step explanation:

Answer:

Explanation:

Answer:

Explanation:

Answer:

Explanation:

Answer:

Explanation:

Answer: YOUR MOM

Step-by-step explanation:

NEED ASAP NEED TO RURN IN FAST!!! WILL MARK *BRAINLIEST*
PROB DIDNT SPELL THAT RIGHT

Select the correct answer.

A cone has a diameter of 18 units and height of 8 units. What is its volume?

A. 72π cubic units

B.216π cubic units

C. 6487 cubic units

D.8647 cubic units

Answers

Answer:

B

Step-by-step explanation:

We know that:

-measuring a cone
-diameter: 18 units
-height: 8 units

We need to know how to find the volume of this cone. To do this, we need the equation to find the volume of a cone:
\(V= \pi r^2\frac{h}{3}\)                   where r=radius and h=height

Upon assessing this equation we also now know that we are missing a radius.

For a circle, the radius is the distance from the midpoint, center, to the border of the circle. The diameter is the distance from the border of one circle to another, passing through the midpoint. Knowing this, we can conclude that the diameter is two times the radius.

Using this information we can figure out the radius for this cone: 9 units.

Now that we have the radius, we can plug in the rest of the numbers with the correct placements.

\(V= \pi 9^2\frac{8}{3}\)                    square the 9 by calculating 9 times 9.

\(V=\pi*81*\frac{8}{3}\)             combine like terms and keep pi separate.

V=216\(\pi\) cubic units
Since this problem is asking for volume, we will used cubic units.

someone answer alll of theese i will give brainliest

someone answer alll of theese i will give brainliest

Answers

Answer:

1.) 4; 5 / 12

2.) 39; 7 / 12

3.) 6; 17 / 20

4.) 2; 2 / 5

5.) 9; 43 / 56

6.) 2; 57 / 110

7.) 32; 41/63

8.) 7

9.) 143; 128 / 199

Step-by-step explanation:

When adding and subtracting fractions you want to find the LCD (Least common denominator)

1.) 5; 2/3 - 1; 1/4

3 6 9 12*

4 8 12*

The least common denominator is 12. now multiply the denominators and multiply their numerators by the same number.

(Numerator)    2 * 4 = 8      &     1 * 3 = 3

(Denominator) 3 * 4 = 12    &     4 * 3 = 12

5; 8 / 12 - 1; 3 / 12

Subtract the whole numbers

5 - 1 = 4

subtract only the numerators (dont subtract or add denominators)

8 - 3 = 5

4; 5 / 12

Answer:

SufferingLife is correct.

Step-by-step explanation:

23 + 18 divided (8-2) +3 ANSWER FAST PLS

Answers

Answer:

Step-by-step explanation:

Use  PEMDAS rule -----> Parenthesis , Exponent, Multiplication & Division and then Addition & subtraction.

23 + 18 ÷ (8 - 2) + 3  = 23 + 18 ÷ 6 + 3     {Now do division}

                                = 23 + 3 + 3

                                = 29

the is the answer, you have to use PEMDAS for this
23 + 18 divided (8-2) +3 ANSWER FAST PLS

what is the volume of the right triangular prism below? 9yd 6yd 21yd

what is the volume of the right triangular prism below? 9yd 6yd 21yd

Answers

Answer:

36 yd

Step-by-step explanation:

Answer:36 yd

Step-by-step explanation:

Mackey invested some money in an account paying 6% interest for one year. She invested $1000 more than this amount in an account paying 8.5%. How much did she invest in total if the total interest earned in the year was $737.50?

Answers

Step-by-step explanation:

Let's assume the amount Mackey initially invested in the 6% account is x dollars.

According to the given information, Mackey invested $1000 more than x in the 8.5% account, which means she invested (x + $1000) dollars in that account.

The total interest earned from the 6% account would be 0.06x dollars, and the total interest earned from the 8.5% account would be 0.085(x + $1000) dollars.

The total interest earned in the year is given as $737.50, so we can set up the equation:

0.06x + 0.085(x + $1000) = $737.50

Simplifying the equation:

0.06x + 0.085x + 0.085($1000) = $737.50

Combining like terms:

0.145x + $85 = $737.50

Subtracting $85 from both sides:

0.145x = $737.50 - $85

0.145x = $652.50

Dividing both sides by 0.145:

x = $652.50 / 0.145

x ≈ $4500

Therefore, Mackey initially invested approximately $4500 in the 6% account, and she invested $1000 more, which means she invested a total of $5500.

$4500

$4500

$4500

$4500

PLZ HELP 20 PTS ANSWER FAST AND I GIVE BRAINLIEST AND 5 STARS TO THE PEOPLE WHO DON'T GET BRAINLIEST!!!!!

Mr. Jacobs is going to make a histogram of the test scores from the last math test he gave. He plans to first organize the data into a stem-and-leaf plot and then make the histogram from the stem-and-leaf plot. The test scores are listed below.

79, 82, 65, 61, 94, 97, 84, 77, 89, 91, 90, 83, 99, 71, 68, 77, 87, 85

Which of the following histograms represents this data

PLZ HELP 20 PTS ANSWER FAST AND I GIVE BRAINLIEST AND 5 STARS TO THE PEOPLE WHO DON'T GET BRAINLIEST!!!!!Mr.

Answers

Answer:

The fourth choice is the correct answer!

The answer is the fourth choice

In a group of 20 students, 7 study both Art and Biology. 5 study Biology but not Art. 8 study neither subject. Given that a randomly selected student studies Art, what is the probability the student studies Art and Biology?

Answers

Answer:

7:20

Step-by-step explanation:

for each of the figures write the absoloute value equation

for each of the figures write the absoloute value equation

Answers

Answer:|x -4| -4 = 0

Step-by-step explanation:

Answer:0

Step-by-step explanation:

simplify 5.142857142857143

Answers

The answer is 5 because the 1 in the tenths place is less than 5 so it tells the digit in the ones place to stay the same.

Answer:

pie squared

Step-by-step explanation:

mean of 8 5 7 5 9 3 5

Answers

Ok you add them all together then divide by the how many numbers there are in that case there are 7 numbers and you get 42 by adding them all together then you divide 42by 7 and you get 6 the mean is 6
the mean would be 6 because you have to add all the numbers and then divide that by how many number there are
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